Automatic bayonet



F. A. KOZLOWSKI.

AUTOMATIC BAYONET.

APPLICATION HLED JUNE. 1 1. 15MB.

1 3 1 4, 6 72; Patented Sept. 2, 1919 THE COLUMBIA PLANOGRAPH co., WASHINGTQPLJL c.

UNITED STATES PATENT OFFICE.

FELIX A. KOZLOWSKI, OF BEAVER TOWNSHIP, BAY CO'UN TY, MICHIGAN.

AUTOMATIC BATONET.

To all whom it may concern.

Be it known that I, FELIX A. KozLowsKI, a citizen of the United States of America, residing at Beaver township, in the county of Bay and State of Michigan, have invented certain new and useful Improvements in Automatic Bayonets, of which the following is a specification.

The object of this invention is to provide a bayonet on a rifle with the bayonet so mounted that it may be easily and quickly retracted and held in such position out of the way, and may be released, by a simple trigger action, and be automatically and instantly advanced into exposed position for use; to provide positive means for maintaining and rigidly supporting the bayonet in its extended position against vibration and displacement when subjected to pressure brought to bear on the outer end of the bayonet; and to provide a support for the bayonet and its parts so situated upon a rifle that when the bayonet is retracted it will be out of the way and will not interfere with other equipment carried by the soldier.

The above, and other more or less important objects and advantages of this invention will be described in, and understood from, the following detailed description of the present preferred embodiment, the same being illustrated in the accompanying drawing, wherein:

Figure 1 is a side elevation, partly in section, of a rifle having a bayonet and beyonet support constructed according to the present invention applied thereto, the dotted lines showing the bayonet in extended position.

Fig. 2 is a fragmentary, enlarged, section through the sheath with the bayonet extended therefrom.

Fig. 3 is a side elevation of the rifle and the bayonet attachment applied thereto.

Fig. 4 is a detail, enlarged, view of the bayonet.

Fig. 5 is a transverse section taken on the line 55 of Fig. 3.

Referring to the drawing, 10 designates the barrel of a rifle to which the automatic bayonet of this invention may be applied.

In the present instance, the bayonet comprises a blade 11 of the usual flat pointed form, and provided at its inner end with a coaxially extending flat reduced shank 12. Intermediately, the shank 12 has at opposite sides thereof shoulders 13 facing away from the blade 11 and formed preferably 7 Specification of Letters Patent. 1

Patented Sept. 2, 1919.

Application filed June 17, 1918. Serial No. 240,319.

metal rolled over upon itself into flattened tubular form and with flaring longitudinal edges forming flanges 19 for attachment against the underside of the barrel 10, as shown in Fig. 5. The casing 19 is of suflt cient length to completely house the blade 11 with its shank and rod. The casing is fitted in its outer end with abushing 20 snugly engaging the blade 11 and with a second bushing 21 snugly engaging the shank 12, the bushings maintaining the bayonet structure from vibrating in the casing. The head 14: on the shank slidably fits in the casing and supports the rod 17 and the rear end of the shank 12.

A helical spring 22 surrounds the rod 17 and bears at one end against the rear wall of the casing and at its other end against the head 14:, normally urging the bayonet structure forwardly in the sheath for projecting the blade 11 into position for use. A spring pressed trigger 23 is pivoted to the underside of the casing 18 in position to engage the hook of the trigger with the shoulder 15 of the head 11 when the latter is fully retracted for maintaining the blade 11 within the sheath or'casing. Slots 2% are formed in the opposite sides of the casing 18 to receive the finger pieces 16 and are of sufiicient length to admit the free movement of the blade 11 into extended and retracted positions.

The casing has at opposite sides, and be tween the bushings 20 and 21, a pair of latches 25 normally urged into the casing 18 by springs 26 for interlocking engagement with the shoulders 13 of the shank 12, when the blade 11 is extended.

In operation, when the parts are in the retracted position shown in full lines in Fig. 1, and it is desired to bring the bayonet into use, it is only necessary to depress the trigger 23 by the movement of the finger thereagainst in the ordinary manner of operating the usual trigger of a rifle. When the trigger 23 is depressed it releases the head 14- and the spring 22 quickly projects the bayonet structure forwardly Within the sheath 18 and projects th'e bladel1 beyond the outer end of the sheath for use, as shown in dotted lines in Fig. 1.

The head 14 when advanced by the spring 22 is limited in movement by the inner bushing 21, and the latches 25 snap into the recesses in the shank 12 behind the shoulders 13 for maintaining the blade 11 in extended position and preventing the retraction thereof when pressure is brought to bear upon the outer end of the blade. As

the bushings and 21, rcspectiyely, snugly engage the blade 11 and shank 12, the bay0- net structure is rigidly supported in the sheath and held against lateral vibration.

To retract the bayonet, it isonly necessary to depress the outer ends ofthe latches with one hand and draw the finger. pieces 16 rearwardly with the other hand, the head 11 moving rearwardly. in the sheath and compressing the spring 22 for subsequent action.

\Vhat is claimed 1s: 4 An automatic bayonet .for attachment to a rifle, including a combined blade, shank, head and rod, said shank having recesses formed therein Which incline inwardly and terminate abruptly to provide, shoulders, a

sheath comprising a rolled sheet incasing x,

the blade, shank, head and rod, having its lateralmargins secured to the periphery of the rifle barrel, one end of the sheath terminating short of the rifle stoc t and being closed, the opposite end terminating with the free end of the rifle barrel and being open, a spring convoluted on said rod having one end abutting the closed end of the, sheath and the opposite end abutting the incased head for projecting the blade through the open end of the sheath, and triggers mounted on the sheath and having ends extending therethrough to antomatically slide into the recesses of'said shank and abut said shoulders, whereby return of theblade is prevented until the tri gers are released In testimony whereof I afiix my signature.

FELIX A. KoZ'LoWsKI.

Copies of this patent may be obtained for cents each, by addressing the Commissioner of Patents. Washington, D 0.? 

